Combination units are wonderful inventions that have positively contributed to modern sewer cleaning. These powerful jetting and vacuuming machines have transformed the way to clean pipelines and maintain underground infrastructure.But as wonderful as they are, they present several risks to operators working on them. Most of the dangers are obvious and have potential to inflict severe and immediate harm. But other hazards exist that aren’t as apparent and often get ignored.Combo units are the workhorses of vacuum equipment. And all of that hard work is driven by powerful engines that emit deafening noises. Sounds generated from combo units can gradually
